ly/params.ly

   1 % params.ly
   2 % generic paper parameters
   3
   4 paperfile = \papersize + ".ly";
   5 % paperfile = "a4.ly";
   6 \include \paperfile;
   7 \include "paper.ly";
   8
   9 interline = \staffheight / 4.0;
  10
  11
  12 % thickness of stafflines
  13 staffline = \interline / 10.0;
  14
  15 beam_thickness = 0.52 * (\interline - \staffline);
  16 interbeam = (2.0 * \interline + \staffline - \beam_thickness) / 2.0;
  17 interbeam4 = (3.0 * \interline - \beam_thickness) / 3.0;
  18
  19 % stems and beams
  20 %
  21 % poor man's array size
  22 stem_max = 3.0;
  23 %
  24 stem_length0 = 3.5*\interline;
  25 stem_length1 = 2.5 * \interline;
  26 stem_length2 = 2.0 * \interline;
  27 stem_length3 = 1.5 * \interline;
  28
  29 % only used for beams
  30 minimum_stem_length0 = 0.0; % not used
  31 minimum_stem_length1 = 1.5 * \interline;
  32 minimum_stem_length2 = 1.25 * \interline;
  33 minimum_stem_length3 = 1.0 * \interline;
  34
  35 % stems in unnatural (forced) direction should be shortened,
  36 % according to [Roush & Gourlay].  Their suggestion to knock off
  37 % a whole staffspace seems a bit drastical: we'll do half.
  38 %
  39 forced_stem_shorten0 = 0.5 * \interline;
  40 forced_stem_shorten1 = \forced_stem_shorten0;
  41 forced_stem_shorten2 = \forced_stem_shorten1;
  42 forced_stem_shorten3 = \forced_stem_shorten2;
  43
  44 % there are several ways to calculate the direction of a beam
  45 %
  46 % * MAJORITY : number count of up or down notes
  47 % * MEAN     : mean centre distance of all notes
  48 % * MEDIAN   : mean centre distance weighted per note
  49 %
  50 % enum Dir_algorithm { DOWN=-1, UP=1, MAJORITY=2, MEAN, MEDIAN };
  51 %
  52 DOWN = -1.0;
  53 UP = 1.0;
  54 MAJORITY = 2.0;
  55 MEAN = 3.0;
  56 MEDIAN = 4.0;
  57 % [Ross]: majority
  58 beam_dir_algorithm = \MAJORITY;
  59
  60 % catch suspect beam slopes, set slope to zero if
  61 % outer stem is lengthened more than
  62 beam_lengthened = 0.2 * \interline;
  63 % and slope is running away steeper than
  64 beam_steep_slope = 0.2 / 1.0;
  65
  66 % OSU: suggested gap = ss / 5;
  67 slur_x_gap = \interline / 5.0;
  68 slur_x_minimum = 3.0 * \interline;
  69
  70 % slope damping: keep dy/dx < slur_slope_damping
  71 slur_slope_damping = 0.6;
  72
  73 % dy_slur := dy_music * factor
  74 slur_slope_follow_music_factor = 0.8;
  75
  76 tie_x_minimum = \slur_x_minimum;
  77 tie_x_gap = \slur_x_gap;
  78 tie_slope_damping = 0.8;
  79
  80 % ugh: rename to bow (in bezier.cc and fonts.doc too...)
  81 % slur_thickness = 1.8 * \staffline;
  82 slur_thickness = 1.4 * \staffline;
  83 slur_height_limit = \staffheight;
  84
  85 % slur_ratio = 0.3;
  86 % try bit flatter slurs
  87 slur_ratio = 0.25;
  88 slur_clip_ratio = 1.2;
  89 slur_clip_height = 3.0 * \staffheight;
  90 slur_clip_angle = 100.0;
  91 slur_rc_factor = 2.4;
  92
  93 % ugh
  94 notewidth = (\quartwidth + \wholewidth) / 2.0;
  95
  96 % ugh
  97 barsize = \staffheight;
  98 rulethickness = \staffline;
  99
 100 gourlay_energybound = 100000.;
 101 %{
 102 The following bounds the number of measures
 103 on a line.  Decreasing it greatly reduces computation time
 104 %}
 105 gourlay_maxmeasures = 10.;
 106 castingalgorithm = \Gourlay;
 107
 108 %{ Ross. page 151 lists these values, but we think that thick lines
 109 and kernings are too thick.
 110
 111 bar_kern = 0.5 * \interline;
 112 bar_thinkern = 0.75 * \interline;
 113 barthick_thick = 0.5* \interline;
 114 barthick_score = 0.13333* \interline;
 115 barthick_thin = 0.1*\interline;
 116
 117 %}
 118
 119 bar_kern = 3.0 * \staffline;
 120 bar_thinkern = 3.0 * \staffline;
 121 barthick_thick = 6.0* \staffline;
 122 barthick_thin = 1.6*\staffline;
 123 barthick_score = 1.6*\staffline;
 124
 125 tuplet_thick = 1.0*\staffline;
 126 volta_thick = 1.6*\staffline;
 127
 128 % relative thickness of thin lines  1.6 : 1 : 0.8
 129 stemthickness = 0.8*\staffline;
 130 rulethickness = \staffline;
 131
 132
 133 extender_height = 0.8*\staffline;
 134
 135 % Multi-measure rests
 136 mmrest_x_minimum = 2.0*\staffheight;
 137
 138
 139 % chop off this much when next to pp / ff sign.
 140 crescendo_shorten = 4.0 * \interline;
 141
 142 % in internote.
 143 restcollision_minimum_dist = 3.0;
 144 restcollision_minimum_beamdist = 1.5;
 145
 146 postBreakPadding = 1.0*\interline;
 147
 148 \include "engraver.ly";
 149
 150